laubach



2 Sheets--Sheet 1.

W. H. LAUBAGH.

GAS ENGINE.

No. 73,8116. Batented Jan. 28, 1868.

2 Sheets-Sheet 2,

W. H. LATI-BACH.

GAS ENGINE.

No. 73,816. Patented Jam.r 28, 18,68.

Tu: bums rzrsns w, vacuums., WASHINGTON. o. c.

W. H. Lannion, 0F PHILADELPHIA,.PENNSYLVANIA Lettere Pete-ne Ne. 73,816,dated Jennery 28, 185s.

IMPROVEMENT GAS-ENGINES.

@its Srlgehule ninna tu in time lttten rztin mit uniting part si tigesame.

T0 ALL WHOM IT MAY CONCERN:

Be it known that I, W. H. LAUBACH, of the city of Philadelphia, in thecounty of Philadelphia, in the State of Pennsylvania,'havc invcntcd anew and useful Improvement in Gas-Engines; and Ido hereby declare thatAthe following is a full and exact description thereof, reference beinghad to the accompanying drawings,

` making a part of this speciication, in which- Figure 1, plate A, is nplan, with some parts in section, of my machine.

Figure 1, plate B, is a sectional elevation of my machine.

Figure 2, plate B, is a sectional elevation of the check gas-valve.

Figure 3, plate B, is a plan view of the said valve.`

Figure 4, plate B, is a sectional elevation of the gas-aperture orgas-igniting tubes.

Figure 5 isa sectional plan of said aperture.

, The nature of my invention consists in a gas-machine, in which theigniting flame is made to enter directly the cylinder, thus passingthrough the gas, and, coming in contact with its inflammable portion,will ignite and explode it. Y

To enable'others skilled in the art to make and use my invention, Twillnow proceed to describe its construction aud operation.

C C is the cylinder`made out of metal or material to suit; P I is thepiston, with the usual packing, 86e.; P R is the'piston-rod; P, thepacking for said rod, in head H of the cylinder; K is the gas-feedingpipe, and K the exhaust or discharge-pipe; S V is the inlet orgas-feeding slide-valve; S V", the exhaust slide-valve; S P and S P is awater-chamber all round the cylinder, and which is lled'up to preventthe cylinder from being over-heated; T isl an iniiexible tube, of smalldiameter, passing through the centre of cylindei-head and secured tocentre of piston P I; P is the gas-tight packing of said tube T, inheadH of P I. T is drawn in and out of the cylinder C by the in-and-outmovementof the piston to which it is attached. T is another tube, equalin diameter to T, and parallel to piston-rod P R, and passes throughhead H of C. Although not secured to the piston, thc end of T, insidecylinder C, comes close to the face of the piston,.so that when saidpiston' is drawn close to hcad H of C, it (the end of T) will 'still bein the cylinder C. P is the gas-tight packing T runs through. The outerend of T is connected with 'the pistou-rods head, and, therefore, T hasthe same movement and stroke as P R. The outer ends of T and T arealternately closed by check-valves C V, -for the purpose hereinaftershown. P O is a gas-pipe, set alongside of, or under, or in any-suitableposition near cylinder C, and of a length about equal to that of saidcylinder. p g andp g are two India-rubber, gutta-pereha, or any suitablematerial tubes, respectively connecting the outer ends of T and T withthe corresponding end of P O. The length of said exible connecting-tubesmust be such that when the machine is running, p g or pg, or both, willin nowisecheck or interfere with the stroke of either tubes T or T. Theouter end of tube T is' connected with rod P R by being secured to saidrod cross-head C H, so that both run parallel. Inside both outer endsof,tubes T and T, and near the connection with elastic tubes p g and pg,'are two cheokvalves, for the purpose aforesaid. 1 and 1 are twoupright gas-burners, respectively set into both ends of pipe P O, andhigh enough that their heads will be close, respectively, to both tubesT and T', and near packings P' and P. Two apertures or small holes', AINI and A M', are made into pipes T and T', for purposes hereinfaftershown. Figs. 4 and 5 show, on enlarged scale, the special constructionof said apertures-A. M and A M', which is as follows: In the centre of Tand T are inserted two smaller tubes, t-m, at a certain distance from AM and A M, and between said apertures and the respective outer ends ofT-and T'. The end oft m reaches the centre of apertures A M and A M',and is made so ,as to end in a tapering very small mouth, t a. The saidtubes t m arc encased, so that the gas coming through T and T can reachapertures AM and A M but through mouths t a. I make t m of metal, or anymaterial to suit, such, perhaps, as soapstonc, which wears better, as itcannot rust, which always deteriorates the mouth t d.

Thus constructed, my machine is now ready for use. The inlet-valve isopen, the piston is moved one-half of the cylinder. This movement drawsin the inilammable gas. The inlet-valve then'closes, and `at the samptime the aperture A M, in pipe T, enters the cylinder. In passinggas-burner B, where the gas has been llt, this lights the gas escapingthrough t a in aperture A M, lo that when A M, as aforesaid, enters thecylinder.

the flame or lit jet in A M ignitesthe iniammable ges in the cylinder.Should the stratum of gas, the nme A. M, come iirst'in contact, it willnot be in condition to be ignited. As it (the llame) -will pass throghmany dif-y ferent strata. it must meet one which will ignite andexplode. The explosion puts out the flame in A M, but whenA M comes out,it will again berelit byburner B. Tube T end. v:iper-ture .A M act inla. similar way.

I have endeavored `to show the principle or mode of passing the ignitingflame directly through the innm mable gas in the cylinder, which I have(assayed in various ways, and believing this the best,

What I claim as my invention, and desireto secure by Letters Patent ofthe United States, ie-

lhe combination ancl arrangement of the devic'es,' y 'to pass directlythrough the inflammable ges, inside of the cylinder, described. v i

substantially as herein set forth and W. LAUBAGH. v

Witnesses:

LIONEL nEPINEUIQL, J. H. BowDEN.

as herein set forth, whereby the igniting anie is canaed.

